Khasanah N, Habibah S, Winnuly W. THE EFFECTIVENESS OF USING PROGRAMMING INSTRUCTIONAL VIDEOS IN ENHANCING UNDERSTANDING OF SIMPLE MATHEMATICAL CONCEPTS AMONG EARLY CHILDHOOD STUDENTS AT LESTARI PRESCHOOL. jkpi [Internet]. 2026 Jul. 19 [cited 2026 Jul. 25];7(3). Available from: https://jurnalalkhairat.org/ojs/index.php/jkpi/article/view/2058